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Search Publications by: Craig I. Watson (Fed)

Displaying 51 - 59 of 59

Performance of Electrically Addressed Spatial Light Modulators

March 3, 1999

Author(s)

Patrick Grother, M L. Hsieh, Craig I. Watson

We address two important performance limitations of commonly available spatial light modulations. First we present a method for the determination of modulation transfer function and amplitude modulation from CCD captures of imaged gratings. Second, we

Composite Filter for VanderLugt Correlator

February 4, 1999

Author(s)

Craig I. Watson, Charles L. Wilson, E G. Paek, Patrick J. Grother

This paper will examines the use of composite filters for improving the effectiveness of a Vanderlugt correlator when used for fingerprint identification. A digital simulation, which accounts for noise sources in the optical setup, is used to design and

Effect of Resolution and Image Quality on Combined Optical and Neural Network Fingerprint Matching

July 1, 1998

Author(s)

Charles L. Wilson, Craig I. Watson, E G. Paek

This paper presents results on direct optical matching, using Fourier transforms, and neural networks for matching fingerprints for authentication. Direct optical correlations and hybrid optical neural network correlation are used in the matching system

High Speed Temporal Characterization and Visualization of Spatial Light Modulators and Flat Panel Displays

January 1, 1998

Author(s)

E G. Paek, Charles L. Wilson, John W. Roberts, Craig I. Watson

An apparatus that can characterize and visualize temporal dynamics of spatial light modulators (SLM) or flat panel displays is constructed and evaluated using a commercially available spatial light modulator as a test subject. The apparatus is based on the